not one that is completely organized. -- the best approach is to use the "report problem bug" link from the PGProblemEditor page and that will put a report into bugzilla. John Jones has been doing a pretty good job of following up on these bug reports (although we can always use more help).

great. Over the summer I'm hoping to set up some system using github so that more people can participate in making the actual changes to the npl -- and also we may be able to streamline the bug reporting method. I think we do want to aim for a reasonable filter/editorial board for changing NPL problems -- in the beginning we accepted nearly anything just to get the program started -- but now we want to balance growth and quality

sorry -- helping a student. --- so far the copyright issues haven't come up in any major way --- most problems are kind of generic (e.g. calculus problems haven't changed that much since Thomas or perhaps before). Also each problem is different (since the numbers are different) in some sense. So for many problems it's not an issue. For problems that are recognizably from a specific book they might become an issue -- we'll just remove them in t

case -- many publishers have been glad to contribute their specific problems so that webwork can be used with their specific book. Wiley and also Freeman have done this for "harvard calculus" and rogowski's calculus respectively